Tractor-hitch for drills and drags.



, P. M. KNUTSONL, f TRACTOR HITCH FOR DRILLS AND DRAGS.

APPLICATION FILED 11017.15, 1911.

Pa tented Oct. 22,1912

3 SHEETS-SHEET 1.

. I l 3: i C I @wue/wtoz N M. KNUTSON. TRAGTOR'HITOH FOR DRI LLS AND DRAGS.

APPLICATION FILED NOY. 15, 1911.

Patented 001;. 22, 1912 v P. M KN UTSON. TRACTOR HITCH FOR DRILLS AND DRAGS'. APPLIUATION FILED NOV. 15, 191] 1 ,04 1 8 1 5 Patented Oct, 22, 1912.

um/whoa h In]! so To all whom it may concern.

UNITED STATES PATENT OFFICE.

rnnnn M. KNursoN, or cmrronn, NORTH nAKo'rA, ASSIGNOR. or Venn-HALF TO JOHN FALKENHAGEN, or eannseune, NORTH DAKOTA.

TRACTOR-HITCH FOR DRILLS AND DRAGS.

Specification of ietterslatent, jpats t aoct. 22,1912.

Application filed November 15, 1911. Serial in. 660,364.

Beit known that I, PEDER M. Knu'rson, a citizen of the United States, residing at- 'Clifford,inthe county of Trai'll and State of North Dakota, have invented certain new and useful Improvements in Tractor- Hitches for Drills and Drags, of; Which the following is a specification. -1

This invention relates to improvements in combined cultivators anddrills, the. same being adapted to be attached to the frame of a tractor, whereby the devices are propelled.

A further object of the invention is to produce a device of thischaracter which may be easily and quickly attached to the frame of the usual'tractorso-that the drills will be positioned immediately behind the harrows, whereby the soil is pulverized and conditioned for the drills.

Other objects and advantages will-be apparent from the following description taken in connection with the accompanying drawings and will be understood that changes. in the specific structure shown and described may be made within the scope ofthe-claims without departing from the spirit of the invention.-

In the drawings: Figure 1 represents a top plan View of the device, the same being shown as applied to a tractor frame. Fig. 2 represents a side elevation of the device. Fig. 3 represents a rear elevation-of the same. a

Referring to the drawings,'the numeral 1 designates a tractor of any well known construction and includes a frame 2, which consists of side sills 3 and end sills 1, said frame being supported near its rear end by tractionwheels 5. Upon the side sills 3, and near the front end thereof are secured'boxings 6,

i and into which is bolted the forward ends of the bars 7, said bars extending rearwardly and in oblique relation. to the side sills 3, the rear ends of said bars being then bent so as to assume a position parallel with the side sills 3, and terminate at a point short of the extreme rear. ends of which project slightly beyond the rear end sills' of the; frame, and 4 are supported upon the oppositei ends of a j l beam beam being bolted and supported by ,the:rearyend o the frame 1, the oppositey 'endsj of said beam projecting slightly beyondthe traction wheels 5 so as to support the bars-8 at this point, ,whereby sidesof the said wheels. 7

spaced relation are ri ht angle brackets 11, and to which is bolte theinner end of the hoppers '12, each' of which being provided with a dropper shaft 13, the outer ends of which extend slightly beyond the outer ends of the h'oppers'12 for receivin the drive wheels 14;. The bars 7 have their rear ends passed under the central portion of each of the hoppers 12, and extend a short distance beyond the rear walls of the hoppers 12, and are adaptedto aid in supporting the platforms 15, said platforms sing for the pur- -pose of permitti the operator to refill the ,oppers with see and to watch the operation of the drills. I

Supported upon the rear ends of the bars 8 isa hopper 16 also provided with a dropper shaft 17 'to-the opposite ends of which are fixed sprocket vwheels 18, said sprocket wheels being arranged indirect alinement with similar wheels 19 fixed to the opposing ends of the dropper shafts 13. Passsprocket chains 20, said sprocket chainsbeing compelled to travel during the propulsion of the tractor which causes the drive wheels 14: to revolve and rotate the dropper shafts 13,

dropper shaft 17 of the hopper 16. 1 Passing beneath the frame 2 and slightly in advance of the traction wheels 5 are a pair of transversely arranged -.beams 21, said beamsbeing arranged in spaced parallel relation, the purpose of which will be here inafter described. The beams 21 may be formed from a single length of timber or they may be formed in-sections, the meeting ends of each section-being clamped between the plates 22, as clearly shown in Fig. 1 of the drawing. This is only necessary in cases where timbers of the desired length are not obtainable.

Placed between the beams 21 are a series of harrows 23, saidharrows being of any well known construction. To the front ends of the harrows -23'are secured the rear ends of chains 24, the front ends of which being thesame are held spaced from the outer;

Bolted. to the bars 8- and arrangedlim ing around the sprocket wheels 18 and'19 are thereby imparting similar movement to the inner beam 21 in a similar manner, wherebv the barrows may be moved backward. or

I 5 forward during such travel of the tractor 1.

Mounted upon the front faces of the hoppers 12 are a pair of spaced castings 27 and to which is pivotally connected th inner ends of the V-shaped members 28, said-members being so formed as to produce 'a-transverse bar 29, andto which is connected a pair of caster wheels 30, vthe length of the members 28 being such as to position the caster wheels 30 in advance of the oute beam 21. v

Rigidly connected to-the transverse bars 29 of the members 28 are ears 31 and to which are pivotally connected the outer ends of links32, the inner ends of. which being similarly connected to the outer beam 21, as clearly 'illustrated'in' Fig. 1 of the drawing.

A pair of convergingly arranged links 33 are provided and have their outer meeting ends pivotally connected to one of the pairs of castings 27 carried by the hoppers l2, and their outer ends pivotally connected in any suitable manner to the inner beam 21, so that when the machine is moving forward the beams 21 carrying the harrows 23 will be pulled in this direction by the links 32, and should it be necessary to back the machine, thebeams 21 will be drawnby the are adapted to flex to accommodate the harrows 23 in passing over rough or uneven' round'.

It will be, of course, understood that the bars 7 and 8 and the members 28 are formed from stout metal so as to withstand the strain incident to and during the travel of the tractor.

It is obvious that the dropping shafts of the hoppers 12 and 16 may be provided with suitable clutch mechanism (not shown) to throw the same in and out of operation.

The operation of the device is as follows: Upon the tractor being propelled in a forward direction across a field the members 28 being pivotally connected and provided with the caster wheels 30 will drag the beams 21 in the presence necessary the dropping shafts be thrown out of gear so that injury to the drill teeth and droppingshaft is..prevehted,

the harrows being permitted to travel; backward and will retain their for forward travel.

What is claimed is: 1. The combination with a tractor includ ing a frame, of a pair of spaced beams arranged transversely thereof, a series of. harry,

rows flexibly connected to said beams,, a pair of bars rigidly connected to the frame near the outer end of theframe and extending rearwardly and slightly beyond said frame,

a hopper supported upon the extended ends of said bars, hoppers secured to the outer sides of said bars and in advance of the first mentioned hopper, and means carried bythe second, mentioned hop'pers to operate the drop shaft of the first mentioned hopper.

2. The combihation with a tractor includ-v ed upon the said beam, a hopper supported upon the projected ends of said bars, a secproper position ond pair of bars having their outer ends rigidly connected to the side sills of the frame, and in advance of the outer ends of the first mentioned pair of bars, said second pair of bars extending rearwardly and stopping at a point short of the \rear sill of said frame, hoppers connected t p the sides of the first mentioned bars, said hoppers being also connected to the central portion of the last mentioned hoppers, and a series of flexibly connected barrows arranged in advance of said hoppers.

3. The combination with a tractor including a wheeled supportedframe, of a pair of bars rigidly connected to said frame and extending rearwardly, hoppers connected to I and supported by said bars,-a pair of beams arranged transversely of said frame and in advance of the hoppers, a series of barrows flexibly connected between said beams, V-

shaped members pivotally connected to certain of said hoppers at their rear ends, said members being provided at their forward ends with caster wheels, and pivotally connected links connecting the beams with the forward end of the V-shaped members and certain of the hoppers.

In testimonywhereof I aflix my signature.-

of two witnesses. PEDER M. KNUTSON.

Witnesses:

H. N. KLEO, H. KNUDSON. 

